"ENGAGEMENT DRINKS: Thanks for all the well-wishes!" the 33-year-old actress wrote on Monday, Dec. 30. With the big reveal, Nichols showed off her stunning engagement ring while posing with her soon-to-be husband.

"Thanks for all of the kind words about our engagement...2013 is my favorite year although I don't doubt there are even better years to come," she added via Twitter.

The couple documented their travels this past week as they stopped by The Tragedie of King Richard The Third on Broadway and Grand Central Station. "There's something so soothing about the hum of Grand Central Station," Nichols wrote on Dec. 31.